Chemistry And Application Of H Phosphonates

Author: Kolio D. Troev
Publisher: Elsevier
ISBN: 9780080476490
Size: 34.49 MB
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Chemistry and Application of H-Phosphonates is an excellent source for those planning the synthesis of new phosphorus-containing compounds and in particular derivatives containing a phosphonate, phosphoramide or phosphonic acid diester group. The rich chemistry, low cost and easy availability of diesters of H-phosphonic acid makes them an excellent choice as synthone in a number of practically important reactions. Phosphonic acid esters are intermediates in the synthesis of important classes of compounds such as alpha-aminophosphonic acids, bisphosphonates, epoxyalkylphosphonates, alpha-hydroxyalkylphosphonates, phosphoramides, poly(alkylene H-phosphonate)s, poly(alkylene phosphate)s, nucleoside H-phosphonates. The synthesis of each of these compound classes is reviewed in detail. Alpha-Aminophosphonic acids are an important class of biologically active compounds, which have received an increasing amount of attention because they are considered to be structural analogues of the corresponding Alpha-amino acids. The utilities of alpha-aminophosphonates as peptide mimics, haptens of catalytic antibodies, enzyme inhibitors, inhibitors of cancers, tumours, viruses, antibiotics and pharmacologic agents are well documented. Alpha-Hydroxyalkanephosphonates are compounds of significant biological and medicinal applications. Dialkyl epoxyalkylphosphonates are of interest because of their use as intermediates in the synthesis of bioactive substances, and as modifiers of natural and synthetic polymers. Bisphosphonates are drugs that have been widely used in different bone diseases, and have recently been used successfully against many parasites. Poly(alkylene H-phosphonate)s and poly(alkylene phosphate)s are promising, biodegradable, water soluble, new polymer-carriers of drugs. Nucleoside H-phosphonates seem to be the most attractive candidates as starting materials in the chemical synthesis of DNA and RNA fragments. The 5’-hydrogen phosphonate-3’-azido-2’,3’-dideoxythimidine is one of the most significant anti-HIV prodrug, which is currently in clinical trials. Chapters review the synthesis; physical and spectral properties (1H, 13C, 31P and 17O NMR data); characteristic reactions; important classes of compounds based on these esters of H-phosphonic acid; their application as physiologically active substances, flame retardants, catalysts, heat and light stabilizers, lubricants, scale inhibitors, polymer-carriers of drugs; preparation of H-phosphonate diesters and general procedures for conducting the most important reactions. * provides ideas for the synthesis of phosphonates, phosphoramides and diesters of phosphonic acid (new phosphorus-containing compounds) * reviews structure, spectra and biological activity of H-phosphonates and their derivatives * examines new areas of application of phosphorus-containing compounds


Author: Kolio Dimov Troev
Publisher: Elsevier
ISBN: 0124160360
Size: 44.24 MB
Format: PDF, ePub, Docs
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Polyphosphoesters are a multifunctional, environmentally friendly, and cost-efficient material, making them an important subject. The design of this type of material plays a key role in the progress of industry, agriculture, and medicine. This book introduces the chemistry, characterization and application of polyphosphoesters including comprehensive coverage of poly(alkylene H-phosphonate)s, poly(alkylene phosphate)s, poly(alkyl or aryl phosphonate)s, and poly(alkyl phosphite)s and poly(alkyl phosphinite)s. Each polymer is discussed in detail including methods, properties, and applications. This book is useful for students and practitioners preparing to work, or in the process of working, in the exciting field of polymer chemistry. Presents a unique look at an important, multifunctional and environmentally friendly material Outlines methods used to prepare different polyphosphoesters Comprehensive examination of the properties of polyphosphoesters

Reactivity Of P H Group Of Phosphorus Based Compounds

Author: Kolio D. Troev
Publisher: Academic Press
ISBN: 0128138351
Size: 68.96 MB
Format: PDF
View: 2023
Reactivity of P-H Group of Phosphorus Based Compounds bridges the gap between inorganic and organic phosphorus compounds, providing a basis to explore the myriad possibilities for synthesis of novel low and high molecular phosphorus-containing compounds. It covers well-documented reactions in detail, including: tautomerization, oxidation, reduction, alkylation, oxidation coupling, addition reaction to: carbon-carbon multiple bonds, Schiff base, isocyanates, nitriles, epoxides; addition to carbonyl group, Kabachnik- Fields reaction, cross-coupling reaction and more. In an accessible style complete with synthetic routes and figures, the resource then covers the reactivity of multiple P-H group members: phosphines, phosphine oxides, hypophosphorus acid, H-phosphinic acids and polys(alkylene H-phosphonate). This valuable coverage supports the advancement of research and applications in this area for scientists solving a scientific problem or starting a variety of new projects, such as a new reaction for the synthesis of biologically active compounds, new methods of polymer synthesis or a new methodology for polymer modification. Describes the diverse reactivity of the phosphorus-hydrogen group, perhaps the most powerful in organic chemistry Includes practical information for the synthesis of catalysts, biologically active substances, flame retardants, advance materials and polymer materials Offers a visually-accessible guide to important reactions by an internationally recognized chemist

Metal Phosphonate Chemistry

Author: Abraham Clearfield
Publisher: Royal Society of Chemistry
ISBN: 1849733562
Size: 68.79 MB
Format: PDF, Kindle
View: 99
The first book to describe the state-of-the-art in the interdisciplinary field of metal phosphonate chemistry, aimed at academic and industrial researchers.

Best Synthetic Methods

Author: Chris Timperley
Publisher: Newnes
ISBN: 0080982247
Size: 34.94 MB
Format: PDF, Kindle
View: 3397
Best Synthetic Methods: Organophosphorus (V) Chemistry provides systematic coverage of the most common classes of pentavalent organophosphorus compounds and reagents (including phosphonyl, phosphoryl, and organophosphates), and allows researchers an easy point of entry into this complex and economically important field. The book follows the Best Synthetic Methods format, containing practical methods, synthetic tips, and shortcuts. Where relevant, articles include toxicity data and historical context for the reactions. Typical analytical and spectroscopic data are also presented to enable scientists to identify key compound characteristics. The book is a valuable companion to research chemists in both academia and industry, summarizing the best practical methods (often originating in difficult-to-access, foreign-language primary literature) in one place. It is ideally suited for those working on industrial applications of these compounds, including insecticides, herbicides, flame retardants, and plasticizers. Includes a mixture of tried and tested, historical methods that are proven to work, alongside new methods to provide scientists with a quick, time-saving resource of reliable methods Includes tips and tricks to get reactions to work; important information often missing from other sources Includes key analytical data for compounds, so scientists have one handy resource to select, perform, and analyze the best reaction

Handbook Of Organophosphorus Chemistry

Author: Robert Engel
Publisher: CRC Press
ISBN: 9780824787332
Size: 77.99 MB
Format: PDF, ePub, Mobi
View: 1247
This practical work summarizes the development of organophosphorus chemistry in topical areas and details the discipline's current state - providing applications and experimental procedures throughout.;Written by 18 leading authorities in the field, the Handbook of Organophosphorus Chemistry: examines advances in the mechanistic understanding of the Perkow and related organophosphorus reactions; describes methods for the reduction of quinquevalent to trivalent phosphorus and their applications to standard synthetic procedures; emphasizes the preparation of phosphonates bearing hydroxy, amino, and thiol functions at the alpha-position relative to the phosphoryl group; reviews the basics of NMR as it applies to the 31P nucleus, considering the use of the latest measurement techniques in solving structural and mechanistic problems; compares the characteristics of polymer-based and monomeric materials; and presents recent progress in the design of insecticides and covers their chemical and biological characteristics.;Generously referenced with close to 3000 bibliographic citations, the Handbook of Organophosphorus Chemistry is an important volume for organic, medicinal, and agricultural chemists and biochemists; pharmacists; chemical engineers; and graduate-level students in these disciplines.

Oligonucleotide Synthesis

Author: Piet Herdewijn
Publisher: Springer Science & Business Media
ISBN: 1592598234
Size: 73.31 MB
Format: PDF, Docs
View: 2613
Nucleic acids chemistry has progressed rapidly in the last 10 years with the introduction of many new techniques and the development of many novel therapeutic entities. In Oligonucleotide Synthesis: Methods and Applications, laboratory experts describe in step-by-step detail the powerful new techniques they have developed for oligonucleotide synthesis and for the use of modified oligonucleotides in biotechnology. Among the protocol highlights are the synthesis of phosphorothioates via new sulfur transfer agents, the synthesis of LNA, peptide conjugation methods to improve cellular delivery and cell-specific targeting, triple helix formation, and a novel two-step process that yields a high purity DNA that is less costly. Novel applications include the use of molecular beacons to monitor the PCR amplification process, nuclease footprinting to study the sequence-selective binding of small molecules to DNA, nucleic acid libraries, optimization of RNA synthesis for siRNA applications, and the use of small interference RNA (siRNA) as an inhibitor of gene expression. The protocols follow the successful Methods in Molecular BiologyTM series format, each one offering step-by-step laboratory instructions, an introduction outlining the principle behind the technique, lists of the necessary equipment and reagents, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and highly practical, Oligonucleotide Synthesis: Methods and Applications offers today's investigators not only insight into important new biotechnologies, but also a full range of the detailed protocols needed to work successfully in DNA synthesis and its applications today.

Green Materials From Plant Oils

Author: Zengshe Liu
Publisher: Royal Society of Chemistry
ISBN: 1849739013
Size: 30.41 MB
Format: PDF, ePub, Mobi
View: 2736
Finding alternatives to fossil feedstocks is increasing in importance with the challenges of global warming, increasing oil prices and depleting fossil fuel reserves that we currently face. Today, plant oils are important renewable raw materials for the chemical industry and are heavily used for surfactants, cosmetic products and lubricants. This book covers the green chemistry of products and intermediates synthesised from plant oils. Photo-initiated polymerisation and polymerization of vegetable oils in environmental media are covered as well as click reactions to chemically modify vegetable oils. Useful products from plant oils such as polymers, biomaterials, biofibres and lubricants, as well as their further applications, are described. This book is a valuable resource for researchers in academia and industry, biomass producers and suppliers and manufacturers of end-products.

Phosphorus Chemistry I

Author: Jean-Luc Montchamp
Publisher: Springer
ISBN: 3319154737
Size: 74.37 MB
Format: PDF, ePub, Docs
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Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.